阅读理解，阅读下面的短文，然后根据短文内容，在每小题所给的四个选项中选出最佳选项。

　　Around the world, people have beliefs(信念)about certain food and drink．Some people think that chicken soup is good for a cold．Others believe that it is unhealthy not to eat meat．If you want to know whether these beliefs are true or not, read this text to find out．

　　Belief：Chicken soup helps to fight a cold．

　　Fact：For centuries, people have believed that chicken soup is good for a cold．Now, doctors say this belief may be true．Scientists say that chicken soup contains(包含)a special substance(物质)that stops a cold from getting worse．Also, heat from the soup can make a person feel better．

　　Belief：A vegetarian diet is unhealthy．

　　Fact：Meat, especially red meat, contains protein(蛋白质)that the body needs．A person who doesn't eat meat can get enough protein and be healthy by eating tofu, eggs, nuts, and certain vegetables．

　　Belief：Chocolate causes skin trouble．

　　Fact：This is a general belief that is not true! Scientists say that eating chocolate does not cause skin trouble．More often, the cause is stress or not getting enough sleep．

　　Belief：Tea is better than coffee．

　　Fact：A study in 2002 showed that black or green tea contains substances that can protect your heart, fight cancer and make fat less in your body．Coffee does not do this．

　　Belief：Foods like bread and potatoes are fattening(使发胖)．

　　Fact：Bread and potatoes do not contain much fat, or many calories．Eating too much and not exercising can cause us to get heavier．Also, adding fattening things like butter(奶油)to bread and potatoes can raise the number of calories we eat．

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